Was thinking how in the world am I gonna manage 20-30% water exchanges on this size tank when doing my 47gal with buckets makes me skip a week every now and then. So I was thinking I just need to get an aquarium vacuum gravel cleaner with a really long hose so I can empty the water right out the back door onto the lawn and have a bath tube filled with clean perfect temp water and siphon it into the aquarium. So I went surching on Amozon and found a product "Python No Spill Clean and Fill Aquarium Maintenance System, 50-Feet". It looks as though it it hooks to your water faucet and uses the pressure to create the suction needed and then you use it to fill the tank directly from the faucet. Since I have well water, I don't have to treat it before putting it in my tank but I am concerned that it would be hard to maintain the correct temp of the water. Has anyone used this product or one like it? If so what are your thoughts?